A cylindrical pillar of height is 14m and circumference of ots base os 154m find the cost of paintingthe pillar if the cost of p/msquare is rupees 150
Answers
Answer:
rs. 3961650
Step-by-step explanation:
circumference of cylinder = 2πr
2πr = 154
2*22/7 *r = 154
44r / 7 = 154
r = 154 * 7 / 44
r = 49/2 metre
height of cylinder = 14 metre.
Area of cylinder = πr^2h
22/7 * 49/2 * 49/2 * 14
= 11 * 49 * 49
= 26411 metre square.
cost of painting 1metre sq. = rs. 150
cost of painting 26411 metre sq. =
26411 * 150 = rs.3961650
Hope it will be helpful for you.
Answer:
Rs3,23,400
Step-by-step explanation:
Fisrt we should know that, the curved surface of pillar is to be painted. So, we have to find the curved surface area.
CSA of cylinder
=2(pi)rh
Circumference=2(pi)r=154m .....(given)
Height =14m.......(given)
CSA = 154 × 14 = 2156m²
Cost of painting per mtr² =Rs150
Cost of painting 2156 mtr²= Rs 150 ×2156
=Rs 3,23,400
*PLZZ MARK ME AS BRAINLIEST*
IF ANY DOUBT,CAN SHARE IN COMMENT SECTION